Heineich zweiffel



(No Model.)

H. ZWEIFPEL.

LUBRICATOR.

No. 290,382. Patented Dec. 18, 1883.

Wifi/assay: Inventum*- "v wn' W" @D Wig-W GWW Maw@ ingI may, beemployed.

UNITED STATES PATENT OEEICE.

HEINRICH ZWEIFFEL, OF KALK, NEAR COLOGNE, GERMANY.

LuemcAj-on SPECIFICATION forming part of Letters Patent Nm 290,382,dated December 18, 1883.

Application filed September 20. 1883. (No model.)

To all whom it may concern.-

Be it known that I, HEINRICH ZW'EIFFEL, a resident of Kalk, nearCologne, Rhine, Germany, have invented an .Improved Lubrica. or, ofwhich the following is a specification, reference being. made to theaccompanying drawings, in which- Figure l represents a vertical centralsection of my improved lubrieator, and Figi 2 is a Side view of thesame. I

This invention (for which I have obtained a German Patent, No. 19,931,for from December 28, 1881) has for its object to produce a lubricatorwith a movable plunger, so constructed that the plunger will haverectilinear motion imparted to it. but not rotary' motion; hence, theplunger will not agitata the lubricating matter, butv will, whiledescending in a straight line and without turning, only crowd thelubricating matter out into the place desired.

In the accompanying drawings, the letter arepresents a cylindricallubricating vessel or cup. b is its lid or cover, which isscrewed uponthe cup, as shown iu Fig. 1.

c is the screw for moving the plunger. This screw is swiveled in t-hccover b, as shown.

d is the plunger, which is threaded to receive the screw c. This plungerhas, on its under side, downwardly projecting ribs e, which, enteringthe lubricating matter below, will prevent the plunger from revolving,and cause' it lto move solely in a rectilinear direc tion.

.Instead of providing the plunger with these ribs, other means forpreventing it from turn- Thus, the cup a may be made oval and theplunger oval to fit it, or

. fteen years.

rmt-fecit Germany December sa. wei. nu. 19,931.

they may be joined by feather and groove to preventrotationo'fthe-plunger, 0x' they may he made angular, or the screwc may be placedthe circular plunger d, or the plunger may have a tightly fittingpacking-ring which, bearing against the inner face of the eupgwillprevent its rotation.

It 'will be Seen th eled in the cover b, will naturally have thetendency to move the plunger simply in erecti-I ing dependent on theless or greater resistance which is-oiered to the progress of theplunger by the lubricating xnatteinj It follows that the ribs e, dippinginto the lubricating matter, will b'eas good anxeans as any morepositive arrangement fonperenting' rotation of the plunger. i

I 1. The combination lof the lubticatoneup a and its. cover b withthefswiveled screw c, plunger 41, and means, substantially as described,for preventing the rotation 0f said plunger during its descent under theinfluence of the screw, as specified.

2. The combination of the lubricator-eup a and its cover b with theswiveled screw c, plunger d, and downwardly-projccting ribs e on saidplunger, substantially as specified.

\ In testimony 'whereof lhavesigned mynanie Witnesses:

` C. KURTZ,

Tu. GEI'IMANN.

linear direction, the danger SSI-turning ait" 'oe` to this specificationin the presence of twosub eceentrically through the cover b, and throught the screw c, being swv-

